What Is Rip 1 & 2?

By Andrea Stein

RIP 1 and RIP 2 refer to Routing Information Protocols used to route data.
i global computer network image by Michael Brown from Fotolia.com

A routing protocol refers to a protocol, or standard, that dictates how routers in computer networks interface with each other. RIP, or Routing Information Protocol, is a routing protocol used in LANs and WANs. Versions of RIP include RIP 1 and RIP 2.


RIP 1, the original RIP specification, uses classful network routing. Classful networks, utilized largely for Internet routing from 1981 until 1993 when Classless Inter-Domain Routing was introduced, divides Internet address space into classes, which in turn defines network size. RIP 1 carries no subnetmask information or routing prefixes in an Internet Protocol subnetwork, thereby rendering it impossible to contain different sized subnetworks within the same network class.


RIP 2, also known as RIPv2, was developed in 1993 in response to deficiencies in the RIP 1 standard. RIP 2 carries subnetwork and subnetmask information and supports CIDR, or Classless Inter-Domain Routing. Classless Inter-Domain Routing refers to a system of methods used to distribute or allocate IP addresses and route Internet Protocol packets, which are groups of data.


RIPng, or RIP next generation, refers to an extension of RIP 2 developed to support the next generation Internet Protocol, or IPv6. IPv6, short for Internet Protocol version 6, the successor to the IPv4 protocol, is used for packet-switched internetworking.